1
|
Zhu T, Li W. The regulation of prolactin secretion and its targeting function of teleost. Gen Comp Endocrinol 2024; 354:114530. [PMID: 38657738 DOI: 10.1016/j.ygcen.2024.114530] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/28/2024] [Revised: 04/07/2024] [Accepted: 04/20/2024] [Indexed: 04/26/2024]
Abstract
Prolactin is involved in regulating various physiological activities of vertebrates and is one of the most momentous pituitary hormones. However, not enough attention is currently paid to prolactin, especially in teleost. This paper aims to gather, organize, and analyze recent studies on the regulation and functions of prolactin. By comparing with other animal groups, it highlights the significant role of prolactin in fish reproduction, immunity, growth, and osmotic pressure regulation, as well as the upstream and downstream factors that may be involved in the regulation of prolactin functions were introduced to provide a theoretical basis for the in-depth study and potential practical application of prolactin.
Collapse
Affiliation(s)
- Tiansheng Zhu
- State Key Laboratory of Biocontrol, Guangdong Province Key Laboratory for Aquatic Economic Animals, Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275 China
| | - Wensheng Li
- State Key Laboratory of Biocontrol, Guangdong Province Key Laboratory for Aquatic Economic Animals, Provincial Engineering Technology Research Center for Healthy Breeding of Important Economic Fish, Institute of Aquatic Economic Animals, School of Life Sciences, Sun Yat-Sen University, Guangzhou 510275 China.
| |
Collapse
|
2
|
Banks CM, Trott JF, Hovey RC. The prolactin receptor: A cross-species comparison of gene structure, transcriptional regulation, tissue-specificity, and genetic variation. J Neuroendocrinol 2024; 36:e13385. [PMID: 38586906 DOI: 10.1111/jne.13385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 02/25/2024] [Accepted: 03/13/2024] [Indexed: 04/09/2024]
Abstract
The conserved and multifaceted functions of prolactin (PRL) are coordinated through varied distribution and expression of its cell-surface receptor (PRLR) across a range of tissues and physiological states. The resultant heterogeneous expression of PRLR mRNA and protein across different organs and cell types supports a wide range of PRL-regulated processes including reproduction, lactation, development, and homeostasis. Genetic variation within the PRLR gene also accounts for several phenotypes impacting agricultural production and human pathology. The goal of this review is to highlight the many elements that control differential expression of the PRLR across tissues, and the various phenotypes that exist across species due to variation in the PRLR gene.
Collapse
Affiliation(s)
- Carmen M Banks
- Department of Animal Science, University of California, Davis, Davis, California, USA
| | - Josephine F Trott
- Department of Animal Science, University of California, Davis, Davis, California, USA
| | - Russell C Hovey
- Department of Animal Science, University of California, Davis, Davis, California, USA
| |
Collapse
|
3
|
Brown RSE, Jacobs IM, Khant Aung Z, Knowles PJ, Grattan DR, Ladyman SR. High fat diet-induced maternal obesity in mice impairs peripartum maternal behaviour. J Neuroendocrinol 2023; 35:e13350. [PMID: 37926066 DOI: 10.1111/jne.13350] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/12/2023] [Revised: 09/20/2023] [Accepted: 10/11/2023] [Indexed: 11/07/2023]
Abstract
Obesity during pregnancy represents a significant health issue and can lead to increased complications during pregnancy and impairments with breastfeeding, along with long-term negative health consequences for both mother and offspring. In rodent models, diet-induced obesity (DIO) during pregnancy leads to poor outcomes for offspring. Using a DIO mouse model, consisting of feeding mice a high fat diet for 8 weeks before mating, we recapitulate the effect of high pup mortality within the first 3 days postpartum. To examine the activity of the dam around the time of birth, late pregnant control and DIO dams were recorded in their home cages and the behaviour of the dam immediately before and after birth was analysed. Prior to giving birth, DIO dams spent less time engaging in nesting behaviour, while after birth, DIO dams spent less time in the nest with their pups compared to control dams, indicating reduced pup-engagement in the early postpartum period. We have previously reported that lactogenic hormone action, mediated by the prolactin receptor, in the medial preoptic area of the hypothalamus (MPOA) is critical for the onset of normal postpartum maternal behaviour. We hypothesized that DIO dams may have lower lactogenic hormone activity during late pregnancy, which would contribute to impaired onset of normal postpartum maternal behaviour. Day 16 lactogenic activity, transport of prolactin into the brain, and plasma prolactin concentrations around birth were all similar in control and DIO dams. Moreover, endogenous pSTAT5, a marker of prolactin receptor activity, in the MPOA was unaffected by DIO. Overall, these data indicate that lactogenic activity in late pregnancy of DIO dams is not different to controls and is unlikely to play a major role in impaired onset of normal postpartum maternal behaviour.
Collapse
Affiliation(s)
- Rosemary Shanon Eileen Brown
- Centre for Neuroendocrinology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Department of Physiology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Ireland M Jacobs
- Centre for Neuroendocrinology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Zin Khant Aung
- Centre for Neuroendocrinology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - Pene J Knowles
- Centre for Neuroendocrinology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
| | - David R Grattan
- Centre for Neuroendocrinology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, Auckland, New Zealand
| | - Sharon R Ladyman
- Centre for Neuroendocrinology, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Department of Anatomy, School of Biomedical Sciences, University of Otago, Dunedin, New Zealand
- Maurice Wilkins Centre for Molecular Biodiscovery, Auckland, New Zealand
| |
Collapse
|
4
|
Chen Z, Liang H, Yan X, Liang Q, Bai Z, Xie T, Dai J, Zhao X, Xiao Y. Astragalus polysaccharide promotes autophagy and alleviates diabetic nephropathy by targeting the lncRNA Gm41268/PRLR pathway. Ren Fail 2023; 45:2284211. [PMID: 37994436 PMCID: PMC11001349 DOI: 10.1080/0886022x.2023.2284211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2023] [Accepted: 11/11/2023] [Indexed: 11/24/2023] Open
Abstract
BACKGROUND Astragalus polysaccharide (APS) is a major bioactive component of the Chinese herb astragalus, with well-established protective effects on the kidney. However, the effect of APS on diabetic nephropathy (DN) is unclear. METHODS Long non-coding RNA (lncRNA) expression profiles in kidney samples from control, db/db, and APS-treated db/db mice were evaluated using RNA high-throughput sequencing techniques. Additionally, rat renal tubular epithelial (NRK-52E) cells were cultured in high glucose (HG) media. We inhibited the expression of Gm41268 and prolactin receptor (PRLR) by transfecting NRK-52E cells with Gm41268-targeting antisense oligonucleotides and PRLR siRNA. RESULTS We found that APS treatment reduced 24-h urinary protein levels and fasting blood glucose and improved glucose intolerance and pathological renal damage in db/db mice. Furthermore, APS treatment enhanced autophagy and alleviated fibrosis in the db/db mice. We identified a novel lncRNA, Gm41268, which was differentially expressed in the three groups, and the cis-regulatory target gene PRLR. APS treatment induced autophagy by reducing p62 and p-mammalian target of rapamycin (mTOR) protein levels and increasing the LC3 II/I ratio. Furthermore, APS alleviated fibrosis by downregulating fibronectin (FN), transforming growth factor-β (TGF-β), and collagen IV levels. In addition, APS reversed the HG-induced overexpression of Gm41268 and PRLR. Reduction of Gm41268 decreased PRLR expression, restored autophagy, and ameliorated renal fibrosis in vitro. Inhibition of PRLR could enhance the protective effect of APS. CONCLUSIONS In summary, we demonstrated that the therapeutic effect of APS on DN is mediated via the Gm41268/PRLR pathway. This information contributes to the exploration of bioactive constituents in Chinese herbs as potential treatments for DN.
Collapse
Affiliation(s)
- Zedong Chen
- School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Huiyu Liang
- School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Xianxin Yan
- School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Qiuer Liang
- Affiliated Dongguan People’s Hospital, Southern Medical University (Dongguan People’s Hospital), Guangzhou, China
| | - Zhenyu Bai
- School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Ting Xie
- School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| | - Jiaojiao Dai
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Xiaoshan Zhao
- School of Traditional Chinese Medicine, Southern Medical University, Guangzhou, China
| | - Ya Xiao
- School of Traditional Chinese Medicine, Jinan University, Guangzhou, China
| |
Collapse
|
5
|
Corona G, Rastrelli G, Comeglio P, Guaraldi F, Mazzatenta D, Sforza A, Vignozzi L, Maggi M. The metabolic role of prolactin: systematic review, meta-analysis and preclinical considerations. Expert Rev Endocrinol Metab 2022; 17:533-545. [PMID: 36447418 DOI: 10.1080/17446651.2022.2144829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2022] [Accepted: 11/03/2022] [Indexed: 12/03/2022]
Abstract
INTRODUCTION Hyperprolactinemia has been proven to induce hypogonadism and metabolic derangements in both genders, while the consequences of prolactin (PRL) deficiency have been poorly investigated. AREAS COVERED To systematically review and analyze data from clinical studies focusing on the metabolic consequences of abnormally high prolactin levels (HPRL) and low prolactin levels (LPRL). In addition, data from preclinical studies about underlying pathophysiological mechanisms were summarized and discussed. EXPERT OPINION PRL contributes to providing the correct amount of energy to support the mother and the fetus/offspring during pregnancy and lactation, but it also has a homeostatic role. Pathological PRL elevation beyond these physiological conditions, but also its reduction, impairs metabolism and body composition in both genders, increasing the risk of diabetes and cardiovascular events. Hence, hypoprolactinemia should be avoided as much as possible during treatment with dopamine agonists for prolactinomas. Patients with hypoprolactinemia, because of endogenous or iatrogenic conditions, deserve, as those with hyperprolactinemia, careful metabolic assessment.
Collapse
Affiliation(s)
- Giovanni Corona
- Endocrinology Unit1, Medical Department, Azienda Usl, Maggiore-Bellaria Hospital, Bologna, Italy
| | - Giulia Rastrelli
- Andrology, Women's Endocrinology and Gender Incongruence Unit2, Mario Serio Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Paolo Comeglio
- Andrology, Women's Endocrinology and Gender Incongruence Unit, Mario Serio Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Federica Guaraldi
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
| | - Diego Mazzatenta
- IRCCS Istituto delle Scienze Neurologiche di Bologna, Bologna, Italy
| | - Alessandra Sforza
- Endocrinology Unit1, Medical Department, Azienda Usl, Maggiore-Bellaria Hospital, Bologna, Italy
| | - Linda Vignozzi
- Andrology, Women's Endocrinology and Gender Incongruence Unit, Mario Serio Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| | - Mario Maggi
- Department of Biomedical and Neuromotor Sciences (DIBINEM)4, Alma Mater Studiorum Bologna University, Bologna, Italy; Endocrinology Unit 4, Mario Serio Department of Experimental and Clinical Biomedical Sciences, University of Florence, Florence, Italy
| |
Collapse
|
6
|
Kirsch P, Kunadia J, Shah S, Agrawal N. Metabolic effects of prolactin and the role of dopamine agonists: A review. Front Endocrinol (Lausanne) 2022; 13:1002320. [PMID: 36246929 PMCID: PMC9562454 DOI: 10.3389/fendo.2022.1002320] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2022] [Accepted: 09/15/2022] [Indexed: 11/13/2022] Open
Abstract
Prolactin is a polypeptide hormone that is well known for its role in reproductive physiology. Recent studies highlight its role in neurohormonal appetite regulation and metabolism. Elevated prolactin levels are widely associated with worsening metabolic disease, but it appears that low prolactin levels could also be metabolically unfavorable. This review discusses the pathophysiology of prolactin related metabolic changes, and the less commonly recognized effects of prolactin on adipose tissue, pancreas, liver, and small bowel. Furthermore, the effect of dopamine agonists on the metabolic profiles of patients with hyperprolactinemia are discussed as well.
Collapse
Affiliation(s)
- Polly Kirsch
- New York University (NYU) Grossman School of Medicine, NYU Langone Health, New York, NY, United States
| | - Jessica Kunadia
- Department of Medicine, NYU Langone Health, New York, NY, United States
| | - Shruti Shah
- New York University (NYU) Grossman School of Medicine, NYU Langone Health, New York, NY, United States
| | - Nidhi Agrawal
- Department of Medicine, NYU Langone Health, New York, NY, United States
- *Correspondence: Nidhi Agrawal,
| |
Collapse
|